G gillies Member Dec 9, 2010 #1 The transformer for my Osmolator has a switch to select between 9 and 12 volts. Which do I choose?
rvitko RC Sponsor RC Sponsor Dec 9, 2010 #2 9V is generally preferred (quieter and less power is used, longer pump life) but 12V can be used if you need to pump higher.
9V is generally preferred (quieter and less power is used, longer pump life) but 12V can be used if you need to pump higher.
